function addItem(input){
	var td = input.parentNode;
	var tr  =  td.parentNode;
	var table = tr. parentNode;;
	var rows = table.rows;
	if(rows.length>=3)return;
	var rownum = 0;
	for(var i =0; i< rows.length;i++){
		var row = rows[i];
		if(row == tr){
			rownum =i;
			break;
		}
	}
	var html = '<input  type="file" name="" class="tdd1" size="35" />';
	html+='<input type="button" value="+" onclick="addItem(this)"/>'
	html   += '<input type="button" value="-" onclick="removeItem(this)"/>';
	var newtd = table.insertRow(rownum+1).insertCell(0);
	newtd.innerHTML = html;
	biuldName(rows);
}

function biuldName(rows){
	for(var index=0; index<rows.length; index++) {
		var row = rows[index];
		var cell = row.cells[0];
		var input = null;
		var children = cell.childNodes;
		for(var j=0; j<children.length; j++) {
			if(children[j].tagName && children[j].type=="file" ){
				children[j].name = "file"+index;
				children[j].id = "file"+index;
			}
		}
	}
}

function removeItem(input){
	var td = input.parentNode;
	var tr  =  td.parentNode;
	var table = tr. parentNode;;
	table.removeChild(tr);
	biuldName(table.rows);
} 

function changeFontSize1(font ){
	var table = $E("contentTable");
	var tdfontSize = "12";
	if(font == "big"){
		tdfontSize="14";
	}
	if(font == "middle"){
		tdfontSize="12";
	}
	if(font == "small"){
		tdfontSize="10";
	}
	var cta = $E("contentTextArea");
	if(cta){
		cta.style.fontSize = tdfontSize;
	}
	var cta2 = $E("contentTextArea2");
	if(cta2){
		cta2.style.fontSize = tdfontSize;
	}
	for(var index=0; index<table.rows.length; index++) {
		var row = table.rows[index];
		var cells = row.cells;
		if(cells[0]){
			cells[0].style.fontSize = tdfontSize;
		}
		if(cells[1]){
			cells[1].style.fontSize = tdfontSize;
		}
	}
}